Australian G20 organisers have been left red-faced after it was revealed an email autofill error led to a leak of passport details for 31 world leaders, including Barack Obama, Vladimir Putin and more.

Backed by 7.6 million followers on YouTube, the beauty guru's empire is so diverse even people least likely to watch her Barbie makeup transformation know her name. The online star still has a few secrets.

The Koubachi Wi-Fi Plant Sensor communicates directly with your Wi-Fi router and collects data on soil moisture, temperature, and light. It can also use its helpful database to advise on fertilizer and misting.